<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>

    let students = [
      { name: '小明', age: 18, gender: '男', hometown: '河北省' }, //arr[0]
      { name: '小红', age: 19, gender: '女', hometown: '河南省' }, //arr[1]
      { name: '小刚', age: 17, gender: '男', hometown: ' 山西省' },
      { name: '小丽', age: 18, gender: '女', hometown: ' 山东省' }
    ]

    // for(let k in students){
    //   document.write(students[k].name)
    // }

    for (let i = 0; i < students.length; i++) {
      document.write(students[i].name)
      // let obj = students[i]
      // console.log(obj)
      // console.log(students[i].age)
      // for (let k in obj) {
      //   document.write(obj[k])
      // }
      document.write('<br>')
    }


  </script>
</body>

</html>